The Raspberry Pi is a small computer, implemented on a single electronic board, of the size of a credit card. It has just everything we could want: a powerful ARM processor, RAM, USB, Ethernet, WiFi, Bluetooth but above all on the electronic board a comb is soldered connected directly to the processor, which gives us allows to have digital inputs/outputs (freely configurable) controllable directly from the operating system.
The origin of the name Raspberry Pi seems quite particular but it actually takes up a long British tradition of using Fruit Names for companies like Acorn, Apricot, Tangerine etc. The abbreviation “Pi” refers to the Python programming language, adopted as the first language to be used on this computer.
GETTING STARTED WITH RASPBERRY PI
Make Sure you have all the following components to setup your Raspberry for the first time.
- A Raspberry Pi Board
- Micro SD Card at (least 16 GB)
- HDMI Cable (and if needed, an HDMI adapter)
- USB keyboard and mouse
- A Monitor
- Power Supply (Mobile charger will work)
- Raspbian Software (download)
Raspberry contains all the essential components and ports on a single credit sized board. Figure 2 shows the labeled parts on a Raspberry Board.
USB Ports: Used to connect Keyboard, Mouse for controlling your Raspberry Pi. You can also connect other devices like a USB Pen Drive.
Memory Card Slot: This is where the Raspbian operating system and all your files will be stored. Make sure you have at least 16GB memory card for configuring your Raspberry Pi for the first time.
Ethernet Port: Used to connect the Raspberry Pi with a Local Area Network or to access the Internet. The board can also connect to the network wirelessly with an onboard WiFi Module.
Audio Jack: You can connect your headphones or speakers here.
HDMI Ports: Used to connect a display monitor or a projector with your raspberry pi. You may need external Micro HDMI to HDMI adapter in some cases so that you you can connect your monitor with it.
USB Power: It is used to power your Raspberry Pi Board. Always connect the power at last when everything else is connected to the board.
GPIO pins: These pins are used to interface your sensors, motors and other electronic modules with your Raspberry Pi board.
CONFIGURING YOUR RASPBERRY PI AND INSTALLING RASPBIAN OS
STEP 1: Format your SD card using windows or mac. It should be at least 16 GB.
STEP 2: Copy the Raspbian operating system to the memory card.
STEP 3: As shown in Figure 3, first insert the memory card into the slot, then connect keyboard, Mouse and HDMI to their respective slots according to the numbering. Moreover, you can also add an optional Ethernet cable and audio/video cable if you want.
STEP 4: As soon as you plug in the power cable to the board it will boot up to the screen as shown in Figure 4. Select the first option (Raspberry Pi OS) and click on Install to begin the installation process.
Step 5: After installation is complete your Raspberry Pi will then boot up into a graphical desktop as shown in Figure 5.
Figure 5: Raspberry Pi Graphical Desktop
When you start your Raspberry Pi for the first time, the Welcome to Raspberry Pi application will pop up and guide you through the initial setup where you can select language, timezone, country, connect to Wifi and update Software.